One of my first automotive journalism assignments was assembling a tire buyer's guide. Although writing it was monotonous, the knowledge I gained gave me a newfound enthusiasm for those black, ...

Regular readers know we often run several Xtreme Energy hydraulic-roller camshafts from Comp Cams on our 347 dyno mule. Besides running well, those cams are good choices for a test engine because many ...

Give them the results of a TDC valve-drop static clearance test, and Comp Cam's techs can calculate the piston-to-valve clearance for any of its cams at any degree of rotation. This is especially ...

With free-flowing heads and high-ratio rockers stock, General Motors' LS engine series (and by LS we also include the LQ9, L99, and L92) just cries out for dual-pattern cams with ...

Download an Excel spreadsheet for calculating C COMP. In previous installments, we covered some of the basic tests and identified the sources of errors that occur when designing and testing ...